US7568651B2 - Correction of loosely wound label rolls - Google Patents
Correction of loosely wound label rolls Download PDFInfo
- Publication number
- US7568651B2 US7568651B2 US11/467,287 US46728706A US7568651B2 US 7568651 B2 US7568651 B2 US 7568651B2 US 46728706 A US46728706 A US 46728706A US 7568651 B2 US7568651 B2 US 7568651B2
- Authority
- US
- United States
- Prior art keywords
- supply roll
- material web
- wound around
- amount
- slack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/40—Controls; Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/192—Labels
Definitions
- This invention relates generally to label application machinery, and more specifically to systems and methods of testing for a loosely wound supply roll and correcting a loosely wound supply roll.
- Label rolls produced by manufactures can be wound very loosely anywhere within the roll. This looseness prevents the label application machinery from either calculating an accurate starting diameter of a label roll, or providing adequate web tension to the label roll. Inadequate web tension of the label roll can inhibit control of the label roll. When a label application machine inaccurately calculates the starting diameter of a label roll, or when inadequate web tension is present, the label application machine shuts down. This causes excessive and unacceptable downtime and waste in the form of unusable rolls of material.
- a method of correcting a loosely wound supply roll to be used with a label applying machine includes providing a supply roll having a material web wound thereon, the supply roll mounted on a supply roll spindle such that the material web is aligned with an intake of a labeling mechanism on the label applying machine.
- the method further includes mounting a moveable web guide to apply pressure to the material web being supplied to the labeling mechanism, wherein the web guide includes an encoder.
- the method further includes determining the tension of the material web wound around the supply roll using the movable web guide and the encoder. Further still, the method includes adjusting the tension of the material web wound around the supply roll if the material web is determined to be too loosely wound about the supply roll to provide adequate tension to the web as the web leaves the supply roll.
- an apparatus for correcting a loosely wound supply roll to be used with a label applying machine includes a supply roll mounted on a supply roll spindle, the supply roll having a material web wound thereon.
- the apparatus also includes a motor mechanically coupled to the supply roll spindle.
- the apparatus further includes an angular feedback device including an encoder, wherein the angular feedback device is configured to measure a displacement of a dancer roller.
- the apparatus further includes a processor configured to test the tension of the material web wound around the supply roll using the dancer roller and the angular feedback device, and the processor configured to adjust the tension of the material web wound around the supply roll if the material web is determined to be too loosely wound around the supply roll.
- a computer program embodied on a computer readable medium for testing and correcting a supply roll of material includes at least one code segment that prompts a user to initiate a test method, at least one code segment that provides a motor with a direction and amount in which to rotate, at least one code segment that determines a tension of a material web wound around the supply roll, and at least one code segment that prompts a start of a tension adjusting computer code if the material web is determined to be too loosely wound around the supply roll.
- FIG. 1 is a schematic diagram of a label applying machine having a web guide roller near a bottom limit in accordance with one embodiment of the invention.
- FIG. 2 is a schematic diagram of the label applying machine shown in FIG. 1 having the web guide roller near mid-travel in accordance with one embodiment of the invention.
- FIG. 3 is a schematic diagram of the label applying machine shown in FIG. 1 having the web guide roller near a top limit in accordance with one embodiment of the invention.
- FIG. 4 is an exemplary embodiment of a flow chart illustrating a method of testing the windings of a supply roll.
- FIG. 5 is an exemplary embodiment of a flow chart illustrating a method of correcting the windings of a supply roll.
- a method and an apparatus for determining whether a material web is loosely wound around a supply roll are described herein.
- a method and an apparatus for tightening the material web around the supply roll are described herein.
- the present invention is described below in reference to its application in connection with and operation of an apparatus for providing a material web.
- the web includes a continuous web of printed or non-printed labels coupled in a serial configuration from a supply roll located upon a spindle supported by a support stand to a label applying mechanism. It will be apparent to those skilled in the art and guided by the teachings herein provided that the invention is likewise applicable to any apparatus and/or method for feeding suitable web materials.
- FIG. 1 is a schematic illustration of a label applying machine 10 having a web guide 12 . More specifically, FIG. 1 is an illustration of machine 10 configured to guide a material web 14 from a supply roll 16 to a label applying mechanism (not shown).
- Supply roll 16 is mounted on a supply roll spindle 18 that can be selectively rotated by a motor 19 mechanically coupled to the spindle.
- Material web 14 is wound around supply roll 16 .
- Material web 14 is threaded around a first idler roller 18 , web guide roller 12 , and a second idler roller 22 before reaching the label applying mechanism.
- Web guide roller 12 also known as a dancer roller or supply roll dancer web guide roller, is connected to an arm 24 that is connected to a pivot pin 26 and an angular feedback device and encoder 15 .
- a pressure supplying device 28 for example, an air cylinder, is attached to web guide arm 24 at a first end and is fixed to machine 10 at second end 30 .
- Pressure supply device 28 exerts a force on web guide arm 24 , which exerts a force on material web 14 to maintain a desired level of web tension at supply roll spindle 18 .
- Web guide arm 24 moves between an upper web guide motion limit 32 and a lower web guide motion limit 34 .
- FIG. 2 is a schematic diagram of label applying machine 10 having web guide 12 located near a mid-travel position.
- Web guide 12 and therefore web guide arm 24 , are positioned approximately midway between upper web guide motion limit 32 and lower web guide motion limit 34 .
- Supply roll spindle 18 is provided with instructions from a motion controller/processor 36 to rotate in a direction that should pull web material back onto supply roll 16 .
- a clockwise rotation pulls web material back onto supply roll 16 .
- web guide 12 changes position in response to the clockwise rotation of spindle 18 .
- Supply roll spindle 18 is connected to a servo or stepper motor (not shown) with a position feedback device (not shown).
- the motor and feedback device are connected to motion controller/processor 36 .
- Controller 36 is a device capable of controlling the movement and position of the motor. Controller 36 is programmable. As controller 36 instructs stepper motor (not shown) to rotate supply roll spindle 18 a fixed amount, angular feedback device and encoder (not shown) provides controller 36 with information on the movement of web guide 12 .
- FIG. 3 is a schematic diagram of label applying machine 10 having web guide 12 located near an upper-travel position. Web guide 12 , and therefore web guide arm 24 , are positioned near upper web guide motion limit 32 .
- FIG. 4 is an exemplary embodiment of a flow chart illustrating a method of testing the windings of a supply roll.
- supply roll 16 and material web 14 are configured to be fed to the label applying mechanism.
- Test method 50 enables controller 36 to determine the amount of slack within supply roll 16 to determine whether supply roll 16 is sufficiently wound to provide a suitable material web tension for proper operation of the label applying mechanism.
- Test method 50 typically begins upon a command from controller 36 to the motor (not shown) mechanically coupled to supply roll spindle 18 . This command from controller 36 instructs the motor to rotate 54 supply roll spindle 18 , and therefore supply roll 16 , a first fixed amount in a direction that pulls material web 14 onto supply roll 16 .
- a measurement of the diameter of supply roll 16 is performed, for example, by an ultrasonic sensor.
- Rotating 54 spindle 18 in a direction that pulls material web 14 onto supply roll 16 has the effect of applying a force to web guide 12 , causing web guide 12 and arm 24 to move from a lower web guide motion limit 34 toward upper web guide motion limit 32 .
- Calculating a threshold web guide displacement 56 consists of configuring controller 36 to calculate a threshold web guide displacement, corresponding to a tightly wound supply roll, within a range of supply roll diameters, for a given supply roll spindle rotation 54 .
- Measuring an actual web guide displacement 58 includes configuring the angular feedback device (not shown), attached to arm 24 , to provide controller 36 with an actual displacement of web guide 12 .
- Test method 50 includes programming controller 36 to compare 60 actual web guide displacement 58 to calculated threshold web guide displacement 56 . If actual web guide displacement 58 is equal to or greater than calculated threshold web guide displacement 56 , and web guide 12 has moved past a mid-travel position 62 (see FIG. 2 for approximate location of a mid-travel position), the supply roll is considered to be acceptable and the label applying machine begins a normal startup procedure 64 .
- controller 36 re-starts test method 50 .
- Controller 36 counts the number of failed tests 66 . Controller 36 is provided with a pre-set upper limit of failed test iterations by a user. If the pre-set upper limit of failed test iterations is not reached 68 , controller 36 is configured to re-start test method 50 . If the pre-set upper limit of failed test iterations is reached 68 , controller 36 initiates a correction method 80 .
- FIG. 5 is an exemplary embodiment of a flow chart illustrating correction method 80 to correct the windings of a supply roll, such as supply roll 16 shown in FIG. 1 .
- Correction method 80 reduces the level of slack within supply roll 16 after test method 50 determines correction is necessary and that supply roll 16 is not adequately wound for proper operation of the labeling machine.
- Correction method 80 typically begins 82 upon a command from controller 36 after test method 50 reaches a set number of failed test iterations 68 . This command from controller 36 instructs the motor to continuously rotate 84 supply roll spindle 18 , and therefore supply roll 16 , in a direction that pulls material web 14 onto supply roll 16 .
- Controller 36 also starts a timer, counting toward a set time limit for correction method 80 .
- a measurement of the diameter of supply roll 16 is taken, for example, by an ultrasonic sensor.
- Rotating 84 spindle 18 in a direction that pulls material web 14 onto supply roll 16 has the effect of applying a force to web guide 12 , causing web guide 12 and arm 24 to move from lower web guide motion limit 34 toward upper web guide motion limit 32 .
- the angular feedback device (not shown) attached to arm 24 provides controller 36 with data indicating the displacement of web guide 12 .
- controller 36 reverses the direction of rotation of spindle 18 until web guide 12 nears the lower travel limit 34 .
- Test method 50 is then restarted.
- controller 36 continues to count toward a time limit. This time limit is provided to controller 36 by a user. If this time limit is reached 90 , controller 36 indicates that supply roll 16 is unsuitable for use and is rejected 92 . Setting time limit 90 prevents the labeling machine from being indefinitely tied up in test method 50 and correction method 80 .
- a computer program is provided to controller 36 .
- the program is embodied on a computer readable medium and utilizes a Structured Query Language (SQL) with a client user interface front-end for administration and a web interface for standard user input and reports.
- SQL Structured Query Language
- the system is web enabled and is run on a business-entity intranet.
- the system is fully accessed by individuals having an authorized access outside the firewall of the business-entity through the Internet.
- the system is run in a Windows® NT environment (Windows is a registered trademark of Microsoft Corporation, Redmond, Wash.).
- the application is flexible and designed to run in various different environments without compromising any major functionality.
- the computer program embodied on a computer readable medium for testing and correcting supply roll 16 prompts a user to initiate test method 50 .
- the computer program includes computer code that corresponds to the steps of test method 50 including, providing the motor with a direction and amount in which to rotate 54 , calculating a threshold web guide movement corresponding to the provided motor rotation 56 , comparing the calculated threshold web guide movement to an actual web guide movement 60 provided to the computer program by an encoder 58 , monitoring the actual displacement of the web guide 62 , counting iterations of fixed supply roll rotations 68 , and either beginning a normal label applying machine setup procedure 64 , or prompting a start of correction method 80 if material web 14 is determined to be too loosely wound around supply roll 16 .
- the computer program embodied on a computer readable medium for testing and correcting supply roll 16 also includes computer code that corresponds to the steps of correction method 80 . These steps include instructing the motor to continuously rotate the spindle 84 , monitoring the web guide movement 86 , and maintaining a count 90 of the length of correction method 80 .
- the computer program is provided with an upper time limit for correction by a user.
- the computer program reverts back to the computer code corresponding to test method 50 when web guide 12 reaches an upper limit of web guide movement.
- the computer program provides a user with an indication that supply roll 16 is rejected 92 if the upper time limit for correction passes prior to web guide 12 reaching an upper limit of web guide movement 86 .
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- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
Claims (28)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/467,287 US7568651B2 (en) | 2006-08-25 | 2006-08-25 | Correction of loosely wound label rolls |
US12/473,748 US20090234486A1 (en) | 2006-08-25 | 2009-05-28 | Correction of Loosely Wound Label Rolls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/467,287 US7568651B2 (en) | 2006-08-25 | 2006-08-25 | Correction of loosely wound label rolls |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/473,748 Division US20090234486A1 (en) | 2006-08-25 | 2009-05-28 | Correction of Loosely Wound Label Rolls |
Publications (2)
Publication Number | Publication Date |
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US20080048060A1 US20080048060A1 (en) | 2008-02-28 |
US7568651B2 true US7568651B2 (en) | 2009-08-04 |
Family
ID=39112458
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/467,287 Expired - Fee Related US7568651B2 (en) | 2006-08-25 | 2006-08-25 | Correction of loosely wound label rolls |
US12/473,748 Abandoned US20090234486A1 (en) | 2006-08-25 | 2009-05-28 | Correction of Loosely Wound Label Rolls |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/473,748 Abandoned US20090234486A1 (en) | 2006-08-25 | 2009-05-28 | Correction of Loosely Wound Label Rolls |
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US (2) | US7568651B2 (en) |
Cited By (5)
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US20080058979A1 (en) * | 2006-08-30 | 2008-03-06 | Takeaki Nakano | Strip threading method and strip threading device |
US20090101745A1 (en) * | 2003-06-19 | 2009-04-23 | St Germain Patrick C | Web tensioning device with improved excursion control |
US20120138726A1 (en) * | 2010-12-01 | 2012-06-07 | Liu Kuan-Chih | Winding Apparatus Providing Steady Tension |
US9028034B2 (en) | 2013-01-10 | 2015-05-12 | Seiko Epson Corporation | Printer with mechanism for controlling recording medium tension |
TWI557031B (en) * | 2013-09-18 | 2016-11-11 | 富智康(香港)有限公司 | Correcting mechanism |
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DE102005058964A1 (en) * | 2005-12-09 | 2007-06-14 | Avery Dennison Corp., Pasadena | Dancer arm for constant tension |
DE102009018914A1 (en) * | 2009-04-28 | 2010-11-18 | Otto Junker Gmbh | Device for compensation of tension fluctuations and / or for adjusting the tension on a conveyed flexible strand of material |
IT1397685B1 (en) * | 2010-01-15 | 2013-01-18 | Sacmi Labelling S P A Ora Sacmi Verona S P A | UNBINDING GROUP, PARTICULARLY FOR LABELING DEVICES |
EP2559641B1 (en) * | 2011-08-17 | 2016-06-15 | Seiko Epson Corporation | Media conveyance device, printing device, and media conveyance method |
CN103879818A (en) * | 2014-03-27 | 2014-06-25 | 深圳市新嘉拓自动化技术有限公司 | Servo control double-closed-loop tension oscillating roller |
CN104261183B (en) * | 2014-10-14 | 2017-01-18 | 潘阿海 | Plastic bag cutting device |
JP2016147740A (en) * | 2015-02-12 | 2016-08-18 | 株式会社沖データ | Medium winder and medium unwinding method using the same |
JP6489926B2 (en) * | 2015-05-12 | 2019-03-27 | 株式会社沖データ | Medium winding device and medium winding method |
CN106829600A (en) * | 2017-02-22 | 2017-06-13 | 浙江凯阳新材料股份有限公司 | A kind of thin film tensioning device of membrane production equipment |
JP7122130B2 (en) * | 2018-03-07 | 2022-08-19 | 理想科学工業株式会社 | Web tension adjustment device and web take-up device |
JP2020132327A (en) * | 2019-02-15 | 2020-08-31 | 理想科学工業株式会社 | Web carrier |
CN112193895B (en) * | 2020-11-09 | 2022-05-10 | 河北恒拓机械设备有限公司 | Net collecting tension control device for processing hexagonal net |
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US4535949A (en) | 1983-06-13 | 1985-08-20 | Asea Aktiebolag | Length measuring during rolling up of thin material |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090101745A1 (en) * | 2003-06-19 | 2009-04-23 | St Germain Patrick C | Web tensioning device with improved excursion control |
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US9028034B2 (en) | 2013-01-10 | 2015-05-12 | Seiko Epson Corporation | Printer with mechanism for controlling recording medium tension |
US9321288B2 (en) | 2013-01-10 | 2016-04-26 | Seiko Epson Corporation | Printer with mechanism for controlling recording medium tension |
US9545803B2 (en) | 2013-01-10 | 2017-01-17 | Seiko Epson Corporation | Printer with mechanism for controlling recording medium tension |
TWI557031B (en) * | 2013-09-18 | 2016-11-11 | 富智康(香港)有限公司 | Correcting mechanism |
Also Published As
Publication number | Publication date |
---|---|
US20080048060A1 (en) | 2008-02-28 |
US20090234486A1 (en) | 2009-09-17 |
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